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flank hole |
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flank hole [′flaŋk ‚hōl]
(mining engineering) A hole bored in advance of a working place when approaching old workings. A borehole driven from the side of an underground excavation, not parallel with the center line of the excavation, to detect water, gas, or other danger. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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